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authorDong Aisheng <aisheng.dong@nxp.com>2017-03-23 12:53:21 +0800
committerShawn Guo <shawnguo@kernel.org>2017-03-24 13:42:07 +0800
commit5a42d1198901a13ff46e1d13b91a338d74224dbe (patch)
tree4e68645eb5107f467a7520a67753e9e13eace483 /drivers/soc/imx
parent15c3de4e188b567ab60dbff674002a7f4380af6a (diff)
downloadlinux-5a42d1198901a13ff46e1d13b91a338d74224dbe.tar.bz2
soc: imx: gpc: fix imx6sl gpc power domain regression
Commit 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver") broke the MX6SL GPC power domain support. It always got the following error: [ 1.248364] imx-gpc 20dc000.gpc: could not find pgc DT node This patch adds back the legecy support. Fixes: 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver") Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/soc/imx')
-rw-r--r--drivers/soc/imx/gpc.c18
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c
index ba6e7ab2c240..9a2354ea48c9 100644
--- a/drivers/soc/imx/gpc.c
+++ b/drivers/soc/imx/gpc.c
@@ -309,12 +309,13 @@ static struct genpd_onecell_data imx_gpc_onecell_data = {
.num_domains = 2,
};
-static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap)
+static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap,
+ unsigned int num_domains)
{
struct imx_pm_domain *domain;
int i, ret;
- for (i = 0; i < 2; i++) {
+ for (i = 0; i < num_domains; i++) {
domain = &imx_gpc_domains[i];
domain->regmap = regmap;
domain->ipg_rate_mhz = 66;
@@ -332,7 +333,7 @@ static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap)
}
}
- for (i = 0; i < 2; i++)
+ for (i = 0; i < num_domains; i++)
pm_genpd_init(&imx_gpc_domains[i].base, NULL, false);
if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
@@ -345,7 +346,7 @@ static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap)
return 0;
genpd_err:
- for (i = 0; i < 2; i++)
+ for (i = 0; i < num_domains; i++)
pm_genpd_remove(&imx_gpc_domains[i].base);
imx_pgc_put_clocks(&imx_gpc_domains[1]);
clk_err:
@@ -385,13 +386,8 @@ static int imx_gpc_probe(struct platform_device *pdev)
}
if (!pgc_node) {
- /* old DT layout is only supported for mx6q aka 2 domains */
- if (of_id_data->num_domains != 2) {
- dev_err(&pdev->dev, "could not find pgc DT node\n");
- return -ENODEV;
- }
-
- ret = imx_gpc_old_dt_init(&pdev->dev, regmap);
+ ret = imx_gpc_old_dt_init(&pdev->dev, regmap,
+ of_id_data->num_domains);
if (ret)
return ret;
} else {